| Output $/MTok | $180.00 |
|---|---|
| Input $/MTok | $30.00 |
| Cached input $/MTok | — |
| Context window | 1,050,000 |
| Output cap | 128,000 |
| Modalities | in: text, image / out: text |
| Tool use | ✓ |
| Structured output | — |
| Family | GPT-5.4 |
| Knowledge cutoff | 2025-08-31 |
| Verified | 2026-07-19 |
| Source | provider page ↗ |
| $/min | $0.002150 | $0.002500 |
|---|---|---|
| $/min batch | — | — |
| Streaming | ✓ | ✓ |
| Realtime | ✓ | ✓ |
| Languages | 56+ | en |
| Diarization | included | extra-cost |
| TTFW | — | — |
| Verified | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ |
| $/1M chars | $19.50 | $50.00 | $30.00 |
|---|---|---|---|
| Voice quality | neural | neural | neural |
| Voice cloning | — | ✓ included | — |
| Voice count | — | — | 94 |
| Languages | en, hi, mr, ta, ml, te, kn, pa, bn, or, gu, ar, zh, id, ja, ko, ms, tr, vi, de, es, fr, it, pt, ru, el, fi, no, pl | 31+ | en |
| SSML support | — | — | — |
| TTFB | 200ms | — | 37ms |
| Output formats | pcm, mp3, wav, ulaw, alaw | — | — |
| Verified | 2026-07-19 | 2026-07-19 | 2026-07-19 |
| Source | provider page ↗ | provider page ↗ | provider page ↗ |